Home / 499,428,766.80-749,143,150.20-479,021,432.40

Finding the Fourth Proportional to 499,428,766.80, 749,143,150.20 and 479,021,432.40

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Solution

The fourth proportional to 499,428,766.80, 749,143,150.20 and 479,021,432.40 is: 718,532,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,428,766.80 : 749,143,150.20 = 479,021,432.40 : x
  2. Step 2: Convert to fraction form
    499,428,766.80/749,143,150.20 = 479,021,432.40/x
  3. Step 3: Cross multiply
    499,428,766.80x = 749,143,150.20 × 479,021,432.40
  4. Step 4: Simplify right side
    499,428,766.80x = 358,855,624,881,452,352
  5. Step 5: Solve for x
    x = 358,855,624,881,452,352/499,428,766.80
  6. Step 6: Final answer
    x = 718,532,148.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.